2012581267 has 2 divisors, whose sum is σ = 2012581268. Its totient is φ = 2012581266.

The previous prime is 2012581217. The next prime is 2012581279. The reversal of 2012581267 is 7621852102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012581267 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012581217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006290633 + 1006290634.

It is an arithmetic number, because the mean of its divisors is an integer number (1006290634).

Almost surely, 2^2012581267 is an apocalyptic number.

2012581267 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012581267 is an equidigital number, since it uses as much as digits as its factorization.

2012581267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 2012581267 is about 44861.8018697421. The cubic root of 2012581267 is about 1262.5574299530.

The spelling of 2012581267 in words is "two billion, twelve million, five hundred eighty-one thousand, two hundred sixty-seven".